University of MédéaFaculty of Science1st Year MIDepartment of Mathematics and Computer ScienceQuestioning: ElectricityExercise 1:Four point charges are placed at the vertices ABCD of a square with side length ,and center O, the origin of an orthonormal coordinate system (Oxy) with unit vectors and .Given : , , , ,.1. Determine the electric field at the center of the square. Specify the direction,magnitude, and direction of .2. Express the potential created at by the four charges.3. Express the potential on the parts of the axes within the square.Exercise 2:Consider four closed surfaces , and , and three charges , , and . Determinethe electric flux passing through each surface ?D CBA

Four identical charges each of charge are placed at the corners of a square. Then at the centre of the square the resultant electric intensity E and the net electric potential V are

Four equal point charges Q =10 nC are place at the four corners of a square 2 m on a side. Find the electric potential at the centre of the square.*1 point25.53 V20.50 V35.23 V28.42 V

The figure below shows two point charges, 𝑄1 = +7.50 nC and 𝑄2 = −8.30 nC, separated bya distance of 5.00 mm.Calculate(a) the force acted upon 𝑄1.(b) the electric field strength at the centre between the point charges.(c) the electric potential at the centre between the point charges.

Four 10nC point charges in free space are located on the corners of a square 10cm on each side.a. Determine the magnitude of force experienced by each of the four point charges.b. Determine the magnitude of force experienced by a fifth 10nC point if it is located 10cmfrom each of the initial four point charges.

A point charge 4µC is located between point A and point B. If point A is 6m north of the point charge and B is 12m west of the charge, determine the electric potential difference.*1 point9000 V6000 V8000 V4000 V